gered/Blarg.GameFramework
Archived
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

add FlatWireframeGrid helper class

Browse source
This commit is contained in:
Gered 2013-08-18 13:07:47 -04:00
parent c8253221ea
commit 9d9203c625
2 changed files with 65 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
Blarg.GameFramework/Blarg.GameFramework.csproj
View file

@ -132,6 +132,7 @@
<Compile Include="Graphics\CustomShaders\CustomVertexSkinningShader.cs" />
<Compile Include="Graphics\SpriteBatch.cs" />
<Compile Include="Graphics\BillboardSpriteBatch.cs" />
<Compile Include="Graphics\Helpers\FlatWireframeGrid.cs" />
</ItemGroup>
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
<ItemGroup>
@ -145,6 +146,7 @@
<Folder Include="Graphics\BuiltinShaders\" />
<Folder Include="Support\" />
<Folder Include="Graphics\CustomShaders\" />
<Folder Include="Graphics\Helpers\" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Resources\Fonts\Vera.ttf" />

63
Blarg.GameFramework/Graphics/Helpers/FlatWireframeGrid.cs Normal file
View file

@ -0,0 +1,63 @@
using System;
namespace Blarg.GameFramework.Graphics.Helpers
{
public class FlatWireframeGrid
{
VertexBuffer _horizontalPoints;
VertexBuffer _verticalPoints;
public int Width { get; private set; }
public int Height { get; private set; }
public GraphicsDevice GraphicsDevice { get; private set; }
public FlatWireframeGrid(GraphicsDevice graphicsDevice, int width, int height)
{
if (graphicsDevice == null)
throw new ArgumentNullException("graphicsDevice");
if (width < 1)
throw new ArgumentOutOfRangeException("width");
if (height < 1)
throw new ArgumentOutOfRangeException("height");
GraphicsDevice = graphicsDevice;
Width = width;
Height = height;
_horizontalPoints = new VertexBuffer(GraphicsDevice, VertexAttributeDeclarations.ColorPosition3D, width * 2 + 2, BufferObjectUsage.Static);
_verticalPoints = new VertexBuffer(GraphicsDevice, VertexAttributeDeclarations.ColorPosition3D, height * 2 + 2, BufferObjectUsage.Static);
var gridColor = Color.White;
for (int i = 0; i < height + 1; ++i)
{
_horizontalPoints.SetPosition3D((i * 2), -(width / 2.0f), 0.0f, i - (height / 2.0f));
_horizontalPoints.SetColor((i * 2), ref gridColor);
_horizontalPoints.SetPosition3D((i * 2) + 1, width / 2.0f, 0.0f, i - (height / 2.0f));
_horizontalPoints.SetColor((i * 2) + 1, ref gridColor);
}
for (int i = 0; i < width + 1; ++i)
{
_verticalPoints.SetPosition3D((i * 2), i - (width / 2.0f), 0.0f, -(height / 2.0f));
_verticalPoints.SetColor((i * 2), ref gridColor);
_verticalPoints.SetPosition3D((i * 2) + 1, i - (width / 2.0f), 0.0f, height / 2.0f);
_verticalPoints.SetColor((i * 2) + 1, ref gridColor);
}
}
public void Render()
{
RenderState.Default.Apply();
GraphicsDevice.BindVertexBuffer(_horizontalPoints);
GraphicsDevice.RenderLines(0, _horizontalPoints.NumElements / 2);
GraphicsDevice.UnbindVertexBuffer();
GraphicsDevice.BindVertexBuffer(_verticalPoints);
GraphicsDevice.RenderLines(0, _verticalPoints.NumElements / 2);
GraphicsDevice.UnbindVertexBuffer();
}
}
}